Teito Klein – the pandora box where Verloren’s body is hidden. While not having the Eye of Mikhael, it gnaws him from inside out, and time will come when he will totally be devoured by Verloren, and Verloren will be revived.

Allen Walker -he is the vessel of Nea Walker, the 14th Noah. Nea is also slowly devouring Allen’s memories…directly saying… his life.

I haven’t finished 07 Ghost and D.Gray-man yet, so I think, there’ll be more similarities if ever 🙂